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Product Specifications
Part Number TX9100E
ShapeRectangular
Item Package Quantity1
Display StyleDigital
Item Dimensions
Weight9.60 Ounces
Length10.50 inches
Width7.75 inches
Height1.50 inches
Product Features
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Product Description
Amazon.com Product Description
Compatible with almost any heating or cooling system--including heat pumps--the Lux TX9100E Smart Temp Programmable Thermostat features a user-friendly, energy-saving design. Because it's programmable, the TX9100E uses energy only when it's needed most, helping save money on your utility bills and protect the environment. For safety and additional benefits, this thermostat is entirely free of mercury.
Multiple Programming Options
One of the easiest ways to reduce utility costs is to program your thermostat to fit your schedule. The TX9100E lets you create a different program for every day of the week, and you can enter four different time periods and temperature settings in a 24-hour period. And when you're away from home, you can use the vacation hold option to ensure that you're not paying to heat or cool an empty house.
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 Thanks to a large lighted display, patented Lux Speed Dial, and preprogrammed energy-saving schedule, the TX9100E is incredibly easy to use. |
One of the easiest ways to reduce utility costs is to program your thermostat to fit your schedule. The TX9100E lets you create a different program for every day of the week, and you can enter four different time periods and temperature settings in a 24-hour period. And when you're away from home, you can use the vacation hold option to ensure that you're not paying to heat or cool an empty house.
Smart Recovery for Maximum Comfort
The TX9100E boasts Smart Recovery, which means the thermostat "learns" how long it takes for the furnace and air conditioner to reach programmed temperature settings. That way, the correct temperature is reached by the beginning of your programmed period.
User-Friendly Programming, Battery Monitor, and Keypad Lock
Thanks to a large lighted display, patented Lux Speed Dial, and a preprogrammed schedule developed to save energy and reduce costs, the TX9100E is incredibly easy to use. It even has a battery monitor that indicates when the battery power is running low.
The TX9100E also offers a programmable keypad lock and 10,000 different possible combinations to prevent unauthorized changes to the thermostat settings.
Save Money and the Environment
Like all programmable thermostats, the TX9100E helps reduce energy consumption, but this efficient device takes savings a step further. To maximize your home's energy efficiency, the TX9100E comes preprogrammed with a default heating and cooling schedule that's designed to save up to $500 in energy costs over a year, and can also help cut down on your carbon footprint. Because the TX9100E is 100% mercury free, you can be sure it's a safe and environmentally conscious choice for your home.
About Lux: Innovation, Quality, and Value
Since 1914, Lux Products Corporation has manufactured quality products for the home. It all began with turn-of-the-century timing devices, the forerunners of the now world-famous Lux 60-Minute Timers. Building on the success of these simple and utilitarian items, Lux grew into the multifaceted manufacturer and merchandiser it is today. The Lux name has always stood for innovation, quality, and value. The company's full line of electronic and mechanical thermostats offers models for nearly every heating and cooling application. See how you can save money and conserve energy with Lux.
What's in the Box
Lux TX9100E Smart Temp Programmable Thermostat, mounting hardware, installation guide, and instruction manual.
 Not sure which model is right for you? Click here for a complete comparison of LUX programmable thermostats. |
Product Description
The new Lux ® TX9100E is a new, fully-programmable energy saving thermostat that is compatible for use with almost every home heating and cooling system, including heat pumps! 7-Day programmable, the TX9100E helps save energy by allowing a homeowner to select times and temperatures that best match their daily schedules and comfort levels. The result is a more energy efficient heating and cooling system that uses energy when it's needed most. The TX9100E also includes special features for ease-of-use and convenience, like the exclusive Lux Speed Dial®, Quick Copy Programming, large easy-to-read lighted display, filter monitor, programmable keypad lock, temporary temperature override, and much more. Last but not least the TX9100E is simple to install, extremely accurate and very reliable for year after year of home comfort and energy savings.
Full reprogrammable, the TX9100E comes straight from the factory pre-programmed, with a typical energy saving set-up.
Universal System Compatibility,
Identifies emergency or auxiliary operation in heat pump mode,
Large lighted display,
Filter usage monitor,
Programmable key pad lock (10,000 codes),
Smart Recovery,
Quick copy
Special Program,
Temperature calibration,
Default energy star approved program,
4 periods per day,
Temporary temperature override,
Temperature Hold,
Swing Setting,
F/C temperature display,
12/24 time display
Low Battery icon,
Power Source by system power or batteries or combination of both,
Mercury Free,
Can be used on,
Most 24 Volt heating and A/C systems.
Single Stage and Multistage Heat Pumps,
Up to 2 Stage Heat / 1 Stage Cool: Gas, Oil, Electric,
2-Wire Hydronic (Hot Water) Systems,
3-Wire Zone Valve Hydronic (Hot Water) Systems,
Cannot be used on Line Voltage applications.
Product Details
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Customer Reviews
Most Helpful Customer Reviews
33 of 33 people found the following review helpful
Amazon Verified Purchase
It took more time to remove the old thermostat than it did to install this new one. I did read the instructions carefully, but I did not look all the way through the packaging materials. I made my own wire labels from masking tape and carefully noted what each wire was connected to on the old thermostat. As I was getting the new thermostat out to install it, out pops a complete set of stick-on wire labels! Using those would have saved a few minutes.
The only thing that was not real clear was just when to attach the new thermostat to its wall-mounted base. Since I am using the optional battery backup mode, I found that I could sit in my recliner and program the thermostat, then click it into place on the wall mount. I don't use a lot of alternate programs ... just the same one each day. The "copy" option worked great. Just set up your first day, and copy it to the other days. Simple.
I have a heat pump with a second stage (very expensive to run) electric heat strip. My old thermostat would kick in that second stage whenever I clicked up the temperature setting a bit. This new thermostat lets you set just how far apart the setting for the heat pump and the second stage should be. Also, it has an "early recovery" mode that anticipates the morning "warmup" phase ahead of time, and it starts the phase early and gradually ... once again so that the second stage heat does not kick in unless it is really cold outside.
If there are any negatives, the backlight is not very bright. When you press any button you can see the display in the dark, but it isn't near as bright as a computer monitor or flat-screen tv. Still, if you are going to use this with the batteries as the sole source of power, this level of brightness would probably use minimal battery resources. If your wiring allows powering it directly from the furnace / heat pump, then it is too bad that there is not a brighter setting for the display.
The only thing that was not real clear was just when to attach the new thermostat to its wall-mounted base. Since I am using the optional battery backup mode, I found that I could sit in my recliner and program the thermostat, then click it into place on the wall mount. I don't use a lot of alternate programs ... just the same one each day. The "copy" option worked great. Just set up your first day, and copy it to the other days. Simple.
I have a heat pump with a second stage (very expensive to run) electric heat strip. My old thermostat would kick in that second stage whenever I clicked up the temperature setting a bit. This new thermostat lets you set just how far apart the setting for the heat pump and the second stage should be. Also, it has an "early recovery" mode that anticipates the morning "warmup" phase ahead of time, and it starts the phase early and gradually ... once again so that the second stage heat does not kick in unless it is really cold outside.
If there are any negatives, the backlight is not very bright. When you press any button you can see the display in the dark, but it isn't near as bright as a computer monitor or flat-screen tv. Still, if you are going to use this with the batteries as the sole source of power, this level of brightness would probably use minimal battery resources. If your wiring allows powering it directly from the furnace / heat pump, then it is too bad that there is not a brighter setting for the display.
15 of 15 people found the following review helpful
This very versatile programmable thermostat is a great alternative to purchasing a more expensive Honeywell thermostat. This thermostat will readily wire up to any single stage or two-stage heat pump system - electric or gas; my unit is a Rheem all electric two-stage heat pump system. Lux shipped the unit promptly and well-packaged. All necessary mounting accessories and clearly-written instructions came with the unit. Installation was a breeze. I must note that if you are a do-it-yourself type, I strongly recommend that you contact Lux and/or your A/C-heater manufacturer to compare notes on which color wire goes to which terminal on your thermostat when connecting the wires. Each system's wiring codes are different, and thermostat makers add extra connection terminals to accommodate as many different systems as possible. For example, in my Rheem system, I have a brown "C" wire that is used as a common for the thermostat and a blue wire that is used to activate one of the heater controls. I connected the brown "C" wire to the "C" terminal and the blue wire to the "B" terminal of the thermostat. In other systems, there is no "C" wire and the blue wire is used as a common. In this particular case, if you were to connect the blue wire to the "B" terminal on your thermostat instead of connecting it to the "C" terminal, you could possibly damage your system. Once wired up correctly, the unit is very easy to program - it takes maybe 15 to 20 minutes to set up a 7-day routine that once set, can be left alone and never touched again and it will provide you with round-the-clock automatic temperature adjustments that will save you money and keep your home comfortable.
There is only one small negative to the Lux TX9100E thermostat. In some wiring applications, it may be necessary to insert a jumper wire between two specific terminals to correctly accommodate your particular system's requirements. Lux does not include this jumper wire in its package. You are required to make one yourself if your system requires it.
There is only one small negative to the Lux TX9100E thermostat. In some wiring applications, it may be necessary to insert a jumper wire between two specific terminals to correctly accommodate your particular system's requirements. Lux does not include this jumper wire in its package. You are required to make one yourself if your system requires it.
15 of 16 people found the following review helpful
Installed this Lux 9100E programmable thermostat two days ago. My wife and I just bought our first house a few months ago and it had a very old Honeywell mercury thermostat. It wasn't bad, it worked very well but wanted a thermostat I could program to turn on and off at certain times with set temperatures. We have a Rheem gas furnace with forced hot air and central air with a Rheem air conditioner on the side of the house. So I guess we have a one-stage HVAC system. I did a lot of research on other thermostats (i.e. Honeywell, Hunter) and finally decided to go for the Lux 9100E. Didn't want to spend 100 dollars on a stat so this seemed like a good choice for me as far as bang for the buck, features and most important it has a temperature swing setting. I paid 40 dollars for it on sale at Lowes. Installation was pretty simple and took me 20 minutes......just read the manual and label all wires accordingly as you remove them from the old thermostat. I removed the old thermostat, placed the supplied stickers on the corresponding wires from the old thermostat (G, Y, RH, RC and W) and just matched them to the new thermostat terminals. I needed to jump the `RC' terminal to the `RH' terminal using the supplied wire in the kit. This was shown in the diagram instructions as well as how the old thermostat was set up so I just did the same thing. The only thing that made me scratch my head was I noticed the old thermostat had two wires connected to the old `Y' terminal. I wasn't sure if both should go to the `Y' terminal on the new thermostat or if one of them should go to the `C`(common wire) terminal. It was a Saturday, tech support was not available until Monday, so I thought the best thing to do was to replicate the same thing on the new stat and connect both `Y' wires on the Y terminal of the new stat. That seemed to be ok since the heat works fine. I like the swing setting which allows you to set a desired temperature swing range of when you want the heat\cool to keep running and remain off. This decreases the on/off cycling of your system which should increase its life. The swing settings are from 1 to 9 in .25 degree temperature increments. In other words, if you have the heat temp setting at 70* and the swing setting set to 4, the heat will turn on at 69* then turn off when it reaches 71*. Keep in mind that this thermostat also has a built in delay feature which basically delays the on and off time. The default setting is 5 minutes and can be changed to 2 minutes. So, if you have the heat temp set to 70*, the swing set to 4 (one degree .25 x 4) and the delay set to 2 minutes, then the heat will turn on 2 minutes after the thermostat drop to 69* and turn off 2 minutes after the thermostat reaches 71*. Hope that wasn't confusing. The delay is set by switching the jumper switch on or off on the back of the thermostat. For some reason though, whether I have the delay set to 2 or 5 minutes, the delay is always 2 minutes. My thermostat for heat is set to 70*, the swing setting is set to 4 (one degree) and the delay set to OFF (5 minutes). With these settings the heat should turn off 5 minutes after the thermostat reaches 71*, but it turns off only after 2 minutes. Same thing happens when the heat is supposed to turn on. Maybe I'm doing something wrong? That's really the only negative thing, or at least the one thing I couldn't get to work as I wanted. No big deal, 2 minute delay is fine or I could even increase the swing setting to adjust accordingly. The LCD display is a light blue which is very nice, stays on for 12 seconds when activated by pressing either the up or down button. Programming was very easy and the thermostat is very accurate. Looks nice on the wall as well. Also has a filter change reminder which can be set to `remind' you to change the filter at whatever setting you have it set to. I have mine set to 30 days. The LCD does not display both current and set temperatures, it just displays current temp. Just hit either the up or down arrow to see the set temp. The one feature that this thermostat does not have is that it does not automatically switch from heat mode to cool mode when called for. In other words, you need to manually change the program mode from heat to cool and visa versa. I live in the northeast so it's really not an issue at all.....just leave it on Heat mode during the winter months and switch to Cool mode in the summer. All in all, this is a very nice thermostat, it's accurate, looks good and has all the features I was looking for that works for us.
Most Recent Customer Reviews
maintains a steady temp.
Consumer Reports said this unit was best at maintaining tempature. I live in the hot humid south and it does what is says and keeps whole house temp conformtable. Read more
Published 14 days ago by P. Miley
Simple to install - Easy to use
Works like s dream! Easy to read from 15-29 feet away. If you are not mechanically inclined, this is the thermostat for you. Read more
Published 27 days ago by Gil Reed
Performed as expected
The 2nd best part of this thermostat is the ability to program each day differently. The best part of this thermostat is the ability to lock the key pad. Read more
Published 1 month ago by PoliNott
Good product, instructions could use slight tweak
This thermostat works great and is really easy to get mounted and installed. The only thing that kept me from giving it five stars is that there are a couple of small plastic tabs... Read more
Published 1 month ago by Spike
up to date
We purchased a house built in 1947 and were looking for new controls for two zoned HVAC systems. This unit was easily installed and programmed.
Published 1 month ago by Peter Storandt
Lux Programable Thermostat
The Lux thermostat works just like it's supposed to and was very easy to program. I programmed it for a seven day period four time periods a day. Read more
Published 1 month ago by hjb111
I should have bought this a long time ago.
I replaced an old Goodman mercury thermostat with this and I really like it. It holds the temperature to exactly what you set it to and it also has a delay start feature that... Read more
Published 2 months ago by Mark
No regrets
This unit looks and works just fine. I don't even need to wear glasses or use a flashlight to read the display at night. Read more
Published 2 months ago by Aliensanctuary
Qualified for $25 EnergyStar Rebate
Before choosing this thermostat, I checked to see what EnergyStar rebates were available in my area. Read more
Published 2 months ago by Elmer
Terrific Thermostat
I bought this because of the 7-day programming and the swing setting feature and the low price relative to the Honeywell thermostats. Read more
Published 2 months ago by She-Ra
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